AI Article Synopsis
- The study explores the evolutionary relationship between arbuscular mycorrhizal (AM) and ectomycorrhizal (EcM) fungi and their respective woody plants, emphasizing their role in enhancing plant nutrition.
- Over time, AM woody plants developed faster nitrogen mineralization rates without changing nitrogen resorption, while EcM plants saw increased mineralization but decreased resorption, indicating a shift toward a more inorganic nutrient economy.
- The research suggests that nutrient acquisition strategies in mycorrhizal plants are influenced by a combination of evolutionary history and climatic factors, with AM plants thriving in warmer conditions due to quicker litter decomposition.
Article Abstract
The associations of arbuscular mycorrhizal (AM) or ectomycorrhiza (EcM) fungi with plants have sequentially evolved and significantly contributed to enhancing plant nutrition. Nonetheless, how evolutionary and ecological forces drive nutrient acquisition strategies of AM and EcM woody plants remains poorly understood. Our global analysis of woody species revealed that, over divergence time, AM woody plants evolved faster nitrogen mineralization rates without changes in nitrogen resorption. However, EcM woody plants exhibited an increase in nitrogen mineralization but a decrease in nitrogen resorption, indicating a shift towards a more inorganic nutrient economy. Despite this alteration, when evaluating present-day woody species, AM woody plants still display faster nitrogen mineralization and lower nitrogen resorption than EcM woody plants. This inorganic nutrient economy allows AM woody plants to thrive in warm environments with a faster litter decomposition rate. Our findings indicate that the global pattern of nutrient acquisition strategies in mycorrhizal plants is shaped by the interplay between phylogeny and climate.
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| http://dx.doi.org/10.1111/ele.14330 | DOI Listing |
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